Private beta · 2026 Q2

Know what your forks are doing.

ForkWatch monitors the GitHub forks of every project you depend on, summarizes meaningful divergence with LLMs, and pings you the moment a fork starts pulling ahead — so you stop clicking through commits at 2 AM.

Get early access See the architecture

fork-alert · webhook

{
  "repo":     "vercel/next.js",
  "fork":     "acme-corp/next.js",
  "verdict":  "diverging",
  "summary":  "Adds streaming SSR support for partial hydration,
               rewrites the router internals — 412 LOC, 14 commits
               ahead. Likely a strategic fork.",
  "score":    0.87,
  "open_url": "https://github.com/acme-corp/next.js"
}

The problem

Nobody watches forks systematically — because the cost is absurd.

Developers and maintainers manually click through GitHub, read commits, skim READMEs, and hope they catch the fork that fixed their bug six months before upstream did. They miss it. Every time.

60K+

Forks per popular repo

1–5%

Active at any time

∞

Hours wasted manually checking

How it works

A three-layer pipeline that scales to a million repos.

We don't poll GitHub for every fork. We use the firehose for breadth, the API for depth, and LLMs only where they add value — which is why $10/mo works at 2,000 subs.

Layer 1

Bulk ingest from GH Archive

Every public GitHub event, hourly, rate-limit free. Filtered into ClickHouse so we can query 300K repos in seconds.

Layer 2

Targeted GitHub API enrichment

Once a cheap LLM triage pass flags an event as interesting, we pull commit messages, diffs, and PR bodies via batched GraphQL.

Layer 3

LLM divergence analysis

Deep summarization on the 10–20% of events that matter. We score divergence and ship the verdict to your webhook, agent, or inbox.

Pricing

One plan. Built for the agent era.

Developer

$10/ month

Everything you need to monitor every fork that matters to you.

Reserve a spot

Unlimited repos in your watch list
Webhook + REST API for agents
Email digest for non-agent humans
MCP server compatible with Claude Code
Triage + deep LLM summaries
Cancel anytime

Or roll your own

Doing this yourself costs hundreds a month — and a weekend you'll never get back.

GitHub API + tooling: ~$50 / mo
LLM inference for diffs: ~$150 / mo
ClickHouse / event ingest: ~$75 / mo
Engineering time: 20+ hrs
ForkWatch: $10 / mo

We process each popular repo once and serve everyone watching it. You save the bill and the build — and get back to shipping.

Stop missing the fork that already fixed your bug.

Drop your email and we'll send a single message when ForkWatch opens up. No drip, no spam, no marketing automation.

~80 spots in the first cohort